Ectonucleotide pyrophosphatase/phosphodiesterase family member 3 (E-NPP 3) (Alkaline phosphodiesterase I) (EC 3.1.4.1) (B10) (Dinucleoside polyphosphatase) (EC 3.6.1.-) (Nucleotide diphosphatase) (Nucleotide pyrophosphatase) (NPPase) (EC 3.6.1.9) (Phosphodiesterase I beta) (PD-Ibeta) (Phosphodiesterase I/nucleotide pyrophosphatase 3) (RB13-6 antigen) (CD antigen CD203c)