Term Name:	diaminohydroxyphosphoribosylaminopyrimidine deaminase activity
Synonyms:	2,5-diamino-6-(ribosylamino)-4(3H)-pyrimidinone 5'-phosphate deaminase activity, 2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)-pyrimidine 2-aminohydrolase activity, 2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)pyrimidine 2-aminohydrolase activity
Definition:	Catalysis of the reaction: 2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)-pyrimidine + H2O + H+ = 5-amino-6-(5-phosphoribosylamino)uracil + NH4.
Ontology:	GO: Molecular Function [GO:0008835]    QuickGO    AmiGO