phosphoribosylaminoimidazolecarboxamide formyltransferase activity
phosphoribosylaminoimidazolecarboxamide formyltransferase activity
Catalysis of the reaction: 10-formyltetrahydrofolate + 5'-phosphoribosyl-5-amino-4-imidazolecarboxamide = tetrahydrofolate + 5'-phosphoribosyl-5-formamido-4-imidazolecarboxamide.