The product of this gene is part of a protein complex that regulates the endocytosis of growth factor receptors. The encoded protein directly interacts with a GTPase activating protein that functions downstream of the small G protein Ral. Its expression can negatively affect receptor internalization and inhibit growth factor signaling. Multiple transcript variants encoding different isoforms have been found for this gene. Protein Interaction Partner: EPN1, CDK1, AP2A1, GRB2, AMPH, AR, CDK5RAP2, REPS1, RALBP1, EPS15, ASAP1, ASAP2, PXN, RALB, RELA, Protein Size: 521