6,7-dimethyl-8-ribityllumazine synthase activity
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.
GO:0016765
transferase activity, transferring alkyl or aryl (other than methyl) groups
is_a
lumazine synthase activity
broad
SPBC409.13