4alpha-monomethylsterol monooxygenase activity
Catalysis of the reaction: 24-methylidenelophenol + 6 Fe(II)-[cytochrome b5] + 3 O2 + 5 H+ = 4alpha-carboxy-ergosta-7,24(24(1))-dien-3beta-ol + 6 Fe(III)-[cytochrome b5] + 4 H2O.
GO:0016716
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, another compound as one donor, and incorporation of one atom of oxygen
is_a
24-methylenelophenol methyl oxidase activity
exact