May contribute to the regulation of cell proliferation. Monomer and homodimer. Subcellular location may vary between isoforms. Additional isoforms seem to exist. Detected in liver, kidney and esophagus (at protein level). Ubiquitous. This protein is coded from a FGF2 (BFGF) gene antisense transcript. Belongs to the Nudix hydrolase family. The rat protein was reported to play a role in DNA repair (PubMed:9406864), based on its ability to complement E.coli deficient in the DNA repair enzyme mutT that hydrolyzes oxidized guanine nucleotides. PubMed:17569023 found no such activity, neither for the human nor the rat protein.