Term Name:	3-oxo-5-alpha-steroid 4-dehydrogenase (NADP+) activity
Synonyms:	3-oxosteroid 5alpha-reductase activity, 3-oxosteroid delta4-dehydrogenase, 5alpha-reductase, cholestenone 5-alpha-reductase activity, cholestenone 5a-reductase activity, cholestenone 5alpha-reductase activity, progesterone 5-alpha-reductase activity, steroid 5alpha-hydrogenase activity, steroid 5alpha-reductase, sterol 5-alpha reductase activity, testosterone 5alpha-reductase, testosterone delta4-hydrogenase activity
Definition:	Catalysis of the reaction: 3-oxo-5alpha-steroid + NADP+ = a 3-oxo-delta(4)-steroid + H+ + NADPH.
Ontology:	GO: Molecular Function [GO:0047751]    QuickGO    AmiGO