Efficient in catalyzing the monooxygenation of benzphetamine, aminopyrine, benzo(a)pyrene, progesterone, and testosterone. an organic molecule + O2 + reduced [NADPH--hemoprotein reductase] = an alcohol + H(+) + H2O + oxidized [NADPH--hemoprotein reductase] Belongs to the cytochrome P450 family.