Enables zinc ion binding activity. Predicted to be involved in cell communication. Predicted to act upstream of or within nucleotide catabolic process. Predicted to be located in plasma membrane. Predicted to be integral component of plasma membrane. Is expressed in several structures, including alimentary system; cardiovascular system; eye; genitourinary system; and nervous system. Orthologous to human ENPP5 (ectonucleotide pyrophosphatase/phosphodiesterase family member 5). [provided by Alliance of Genome Resources, Apr 2022]