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 Fe(II)-[cytochrome b5] + O2 + 2 H+ = a Delta(5),Delta(7)-sterol + 2 Fe(III)-[cytochrome b5] + 2 H2O.
Ontology:	GO: Molecular Function [GO:0050046]    QuickGO    AmiGO