May be involved in modulation of TNF response. May be involved in presentation of TNFRSF1A on the cell surface (PubMed:16332174). Involved in the endosome-to-plasma membrane trafficking and recycling of SNX27-retromer-dependent cargo proteins, such as GLUT1. Involved in the regulation of cytokinesis; the function may involve PTPN13 and GIT1 (By similarity). Endosome-associated protein that plays a role in membrane receptor sorting, cytokinesis and ciliogenesis. Involved in the endosome-to-plasma membrane trafficking and recycling of SNX27-retromer-dependent cargo proteins, such as GLUT1. Involved in the regulation of cytokinesis; the function may involve PTPN13 and GIT1. Plays a role in the formation of cilia. Involved in cargo protein localization, such as PKD2, at primary cilia (By similarity). Involved in the presentation of the tumor necrosis factor (TNF) receptor TNFRSF1A on the cell surface, and hence in the modulation of the TNF-induced apoptosis (PubMed:16332174). Found in a complex with ENTR1, PTPN13 and GIT1. Interacts with PTPN13 (via the FERM domain) (By similarity). Interacts (via N-terminus) with GIT1 (via N- and C-terminus); this interaction is direct (PubMed:23108400). Interacts with NOD2. Interacts (via N-terminus) with IFT88. Interacts with VPS35. Colocalizes in a WASHC2-dependent manner with the retromer CSC complex at endosomes. During cytokinesis colocalized with PTPN13 at the midbody. Colocalizes with IFT88 and gamma-tubulin at the basal body of primary cilia. Colocalizes with IFT88 and pericentrin at the centrosome. Tne N-terminal domain is necessary and sufficient for basal body localization and ciliogenesis. Phosphorylated. Belongs to the ENTR1 family.