GTPase activating protein that acts on ARF6. Plays a role in clathrin-dependent endocytosis. May play a role in erythropoiesis (By similarity). Interacts with ARF6. Interacts with clathrin heavy chains via the clathrin box-like motif (By similarity). Detected in bone marrow, adrenal gland, trachea, lymph node, spinal cord, peripheral blood leukocytes, thyroid and stomach. Contaminating sequence. Potential poly-A sequence.