Background of the antigen
Guanine nucleotide exchange factor (GEF) for RAB35. May function as a clathrin-associated sorting protein for RAB35, whereby during clathrin-mediated endocytosis, binds the AP-2 complex and inactived RAB35, then activates RAB35 for its subsequent function at endosomes.Tissue specificity:Highly expressed in dendritic and natural killer cells and at lower levels in other myeloid lineage cells and in pituitary. Significantly up-regulated in effector memory T cells as compared with naive T cells.