riboflavin synthase activity
6,7-dimethyl-8-(1-D-ribityl)lumazine:6,7-dimethyl-8-(1-D-ribityl)lumazine 2,3-butanediyltransferase activity
related
heavy riboflavin synthase
narrow
light riboflavin synthase
narrow
riboflavin synthetase activity
related
riboflavine synthase activity
related
riboflavine synthetase activity
related
vitamin B2 synthase activity
exact
Catalysis of the reaction: 2 6,7-dimethyl-8-(1-D-ribityl)lumazine + H+ = 5-amino-6-(D-ribitylamino)uracil + riboflavin.
GO:0016765
transferase activity, transferring alkyl or aryl (other than methyl) groups
is_a
SPCC1450.13c