NOVELTY - A lipase gene encoding: (i) fully defined 464 amino acids (SEQ ID NO: 2) given in the specification; (ii) 22-464 amino acids of SEQ ID NO: 2; or (iii) amino acid sequence of (i) or (ii) having one or more amino acids that are substituted, deleted or derived, where the amino acid sequence has lipase activity, is new.    USE - The lipase gene or lipase is useful for lipase catalytic reaction; for enhancing catalytic activity of lipase; and for inhibiting catalytic activity of lipase. The lipase gene or lipase can also be used in fields of fine chemical engineering, medicine, food, paper making, leather processing, textile and feed industry, grease processing, biological diesel oil, ester bond compound synthesis, or chiral medicine synthesis application (all claimed).    ADVANTAGE - The lipase gene or lipase has wide pH stability and temperature stability.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) a lipase selected from: (i) SEQ ID NO: 2; (ii) 22-464 amino acids of SEQ ID NO: 2; or (iii) amino acid sequence of (i) or (ii) having one or more amino acids that are substituted, deleted or derived, were the amino acid sequence has lipase activity,    (2) a vector comprising the lipase gene;    (3) a host cell comprising the lipase gene, lipase, or the vector;    (4) a method for producing lipase comprising using the host cell for producing lipase, cell culturing, and isolating lipase; or a method for producing lipase comprising using the lipase above and acceptable auxiliary material;    (5) a method for lipase catalytic reaction, comprising: (a) inducing the lipase in a host cell; and (b) contacting with a lipase reaction system under condition suitable for lipase catalytic reaction;    (6) a method for enhancing catalytic activity of lipase, comprising using lipase for producing lipase catalytic reaction process, and adding calcium (Ca2+), magnesium (Mg2+), potassium (K+), sodium (Na+), ammonium (NH4)+, nickel ion (Ni2+), Triton X-100 or AEO-9; and    (7) a method for inhibiting catalytic activity of lipase comprising using the lipase for production of lipase catalytic reaction process, and adding zinc (Zn2+), cobalt (Co2+), sodium dodecyl sulfate (SDS) or hexadecyltrimethylammonium bromide (CTAB).