7,8-dihydropterin-6-yl-methyl-4-(beta-D-ribofuranosyl)aminobenzene 5'-phosphate synthase activity
Catalysis of the reaction: 4-(beta-D-ribofuranosyl)aminobenzene 5'-phosphate + (2-amino-4-hydroxy-7,8-dihydropteridin-6-yl)methyl diphosphate = N-[(7,8-dihydropterin-6-yl)methyl]-4-(beta-D-ribofuranosyl)aniline 5'-phosphate + diphosphoric acid.
GO:0016765
transferase activity, transferring alkyl or aryl (other than methyl) groups
is_a