Term Name:	delta7-sterol 5(6)-desaturase activity
Synonyms:	5-DES, delta7-sterol 5-desaturase activity, delta7-sterol delta5-dehydrogenase activity, delta7-sterol-C5(6)-desaturase activity, lathosterol 5-desaturase activity, lathosterol oxidase activity
Definition:	Catalysis of the reaction: a delta(7)-sterol + 2 ferrocytochrome b5 + O2 + 2 H+ -> a delta(5,7)-sterol + 2 ferricytochrome b5 + 2 H2O.
Ontology:	GO: Molecular Function [GO:0050046]    QuickGO    AmiGO