This gene encodes a member of the taxilin family. The encoded protein binds to the C-terminal coiled-coil region of syntaxin family members 1A, 3A and 4A, and may play a role in intracellular vesicle trafficking. This gene is up-regulated by lipopolysaccharide and the gene product may be involved in cell cycle regulation. The related mouse protein was also shown to inhibit activating transcription factor 4-mediated transcription and thus regulate bone mass accrual. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. Alias Symbols: CXorf15, ELRG, FIAT, LSR5 Protein Interaction Partner: STUB1, UBC, USP3, ZC3H11A, UBA1, TTC4, TLN1, CHAMP1, TXLNA, WIPF2, TXLNB, AZI2, TBK1, MAX, STX4, Protein Size: 528