Term Name:	hydroxyisourate hydrolase activity
Synonyms:	5-hydroxyisourate amidohydrolase activity, 5-hydroxyisourate hydrolase activity, HIUHase activity
Definition:	Catalysis of the reaction: 5-hydroxyisourate + H2O = 5-hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylate + H+.
Ontology:	GO: Molecular Function [GO:0033971]    QuickGO    AmiGO