Term Name:	formimidoyltetrahydrofolate cyclodeaminase activity
Synonyms:	5-formimidoyltetrahydrofolate ammonia-lyase (cyclizing), 5-formimidoyltetrahydrofolate ammonia-lyase (cyclizing; 5,10-methenyltetrahydrofolate-forming), formiminotetrahydrofolate cyclodeaminase activity
Definition:	Catalysis of the reaction: 5-formimidoyltetrahydrofolate + 2 H+ = 5,10-methenyltetrahydrofolate + NH4.
Ontology:	GO: Molecular Function [GO:0030412]    QuickGO    AmiGO