ENPP3 is a symbol for the gene, Ectonucleotide pyrophosphatase/phosphodiesterase 3, in humans. Other names include: Ectonucleotide pyrophosphatase/phosphodiesterase family member 3; E-NPP 3; Phosphodiesterase I beta; PD-Ibeta; Phosphodiesterase I/nucleotide pyrophosphatase 3; CD antigen CD203c; B10; CD203c; NPP3; PDNP3. The encoded protein is an enzyme with an amino acid length of 875 and a mass of 100.1 kDa. Other isoforms may exist. ENPP3 is a member of the Nucleotide pyrophosphatase/phosphodiesterase family. This gene shares homology with other species, including: Mouse.