Tethering protein that sequesters GLUT4-containing vesicles in the cytoplasm in the absence of insulin. Modulates the amount of GLUT4 that is available at the cell surface. Interacts with GLUT4. Ubiquitous. Highly expressed in testis, heart, skeletal muscle and pancreas. 4 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Membrane protein, peripheral; Oncoprotein; Vesicle