Enables nucleoside-diphosphatase activity and nucleoside-triphosphatase activity. Acts upstream of or within nucleoside diphosphate biosynthetic process and nucleoside monophosphate biosynthetic process. Located in membrane. Is expressed in esophagus; intestine; lung; and reproductive system. Orthologous to human ENTPD8 (ectonucleoside triphosphate diphosphohydrolase 8). [provided by Alliance of Genome Resources, Apr 2022]