Catalyzes a Baeyer-Villiger oxidation reaction, i.e. the insertion of an oxygen atom into a carbon-carbon bond adjacent to a carbonyl, which converts ketones to esters or lactones using NADPH as an electron donor. Besides cycloalkanones, can use cyclic alpha,beta-unsaturated ketones as substrates, leading to conjugated ene-lactones. Can also act on methylated cycloalkanones and methylated cycloalkenones with high enantioselectivity in some cases. This enzyme offers a promising route for the synthesis of chiral ene-lactones, when expressed in an engineered strain deprived of enone reductase activity. Displays a different regioselectivity from P.lavamentivorans BVMO. Belongs to the FAD-binding monooxygenase family.