Calcium-dependent nucleotidase with a preference for UDP. The order of activity with different substrates is UDP > GDP > UTP > GTP. Has very low activity towards ADP and even lower activity towards ATP. Does not hydrolyze AMP and GMP ( , ). Involved in proteoglycan synthesis .
Subcellular locations: Endoplasmic reticulum membrane, Golgi apparatus, Golgi stack membrane, Cell membrane
Processed form: Secreted.
Widely expressed.