GRIN3A is a symbol for the gene, Glutamate receptor, ionotropic, N-methyl-D-aspartate 3A, in humans. Other names include: Glutamate receptor ionotropic, NMDA 3A; GluN3A; N-methyl-D-aspartate receptor subtype 3A; NMDAR3A; NR3A; NMDAR-L. The encoded protein has an amino acid length of 1115 and a mass of 125.5 kDa. GRIN3A is a member of the Glutamate-gated ion channel (TC 1.A.10.1) family, NR3A/GRIN3A subfamily. This gene shares homology with other species, including: Mouse.