The function of Ensembl gene identifier ENSG00000145103 (ILDR1, immunoglobulin like domain containing receptor 1) is as follows. Maintains epithelial barrier function by recruiting MARVELD2/tricellulin to tricellular tight junctions (tTJs) (PubMed:23239027). Crucial for normal hearing by maintaining the structural and functional integrity of tTJs, which are critical for the survival of auditory neurosensory HCs. Mediates fatty acids and lipoproteins-stimulated CCK/cholecystokinin secretion in the small intestine. In the inner ear, may regulate alternative pre-mRNA splicing via binding to TRA2A, TRA2B and SRSF1 (By similarity). . (Microbial infection) Promotes influenza virus infection by inhibiting viral nucleoprotein NP binding to PLSCR1 and thereby PLSCR1- mediated antiviral activity. .