Ectonucleoside triphosphate diphosphohydrolase 5 (ENTPD5)

Uridine diphosphatase (UDPase) that boosts protein N- glycosylation and ATP level regulation. UDP hydrolysis promotes protein N-glycosylation and folding in the endoplasmic reticulum, in addition to elevated ATP consumption in the cytosol via an ATP hydrolysis cycle.

Together with CMPK1 and AK1, constitutes an ATP hydrolysis cycle that converts ATP to AMP and results in a compensatory increase in aerobic glycolysis. The nucleotide hydrolyzing preference is GDP > IDP > UDP, but not any other nucleoside di-, mono- or triphosphates, nor thiamine pyrophosphate.