Term Name:	riboflavin synthase activity
Synonyms:	6,7-dimethyl-8-(1-D-ribityl)lumazine:6,7-dimethyl-8-(1-D-ribityl)lumazine 2,3-butanediyltransferase activity, heavy riboflavin synthase, light riboflavin synthase, lumazine synthase activity, riboflavin synthetase activity, riboflavine synthase activity, riboflavine synthetase activity, vitamin B2 synthase activity
Definition:	Catalysis of the reaction: 2 6,7-dimethyl-8-(1-D-ribityl)lumazine + H+ = 5-amino-6-(D-ribitylamino)uracil + riboflavin.
Ontology:	GO: Molecular Function [GO:0004746]    QuickGO    AmiGO