GO biological process

steroid biosynthetic process, oxidation-reduction process

GO cellular component

endoplasmic reticulum, membrane

GO molecular function

nucleotide binding, 3-beta-hydroxy-delta5-steroid dehydrogenase activity, oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor, sterol-4-alpha-carboxylate 3-dehydrogenase (decarboxylating) activity