Term Name:	4-amino-5-hydroxymethyl-2-methylpyrimidine diphosphatase activity
Synonyms:	HMP-PP diphosphatase, HMP-PP pyrophosphatase
Definition:	Catalysis of the reaction: 4-amino-5-hydroxymethyl-2-methylpyrimidine pyrophosphate + H2O = hydroxymethylpyrimidine phosphate + phosphate + H+.
Ontology:	GO: Molecular Function [GO:0002145]    QuickGO    AmiGO