BATF3 is a symbol for the gene, Basic leucine zipper transcription factor, ATF-like 3, in humans. Other names include: Basic leucine zipper transcriptional factor ATF-like 3; B-ATF-3; 21 kDa small nuclear factor isolated from T-cells; Jun dimerization protein p21SNFT; Jun dimerization protein 1; JUNDM1; SNFT. The encoded protein has an amino acid length of 127 and a mass of 14.5 kDa. Other isoforms may exist. BATF3 is a member of the BZIP family. This gene shares homology with other species, including: Mouse.