Cytochrome P450 monooxygenase; part of the gene cluster that mediates the biosynthesis of 1233A, a natural compound known as an inhibitor of HMG-CoA synthase in the mevalonate pathway and with antibacterial and antifungal activities (PubMed:32139880). The highly reducing polyketide synthase g433 is responsible for the 1233A backbone biosynthesis and the cytochrome P450 monoxygenase g430 catalyzes oxidation of the backbone (Probable). Mycotoxin biosynthesis. Expression is increased upon exposure to hygromycin B. Impairs the ability to produce 1233A and its hydrolysis product 1233B. Belongs to the cytochrome P450 family.