Term Name:	3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione 4,5-dioxygenase activity
Synonyms:	3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione:oxygen 4,5-oxidoreductase (decyclizing), 3-alkylcatechol 2,3-dioxygenase activity, steroid 4,5-dioxygenase activity
Definition:	Catalysis of the reaction: 3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione + O2 = 3-hydroxy-5,9,17-trioxo-4,5:9,10-disecoandrosta-1(10),2-dien-4-oate + H+.
Ontology:	GO: Molecular Function [GO:0047071]    QuickGO    AmiGO