Term Name:	6,7-dimethyl-8-ribityllumazine synthase activity
Synonyms:	lumazine synthase activity
Definition:	Catalysis of the reaction: 3,4-dihydroxy-2-butanone-4-phosphate + 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione = 6,7-dimethyl-8-ribityllumazine + phosphate.
Ontology:	GO: Molecular Function [GO:0000906]    QuickGO    AmiGO