Enables clathrin binding activity. Involved in clathrin coat assembly. Located in clathrin-coated vesicle and postsynapse. Is extrinsic component of cytoplasmic side of plasma membrane; extrinsic component of postsynaptic membrane; and extrinsic component of presynaptic membrane. Is active in glutamatergic synapse; postsynaptic membrane; and presynapse. Orthologous to human HIP1 (huntingtin interacting protein 1). [provided by Alliance of Genome Resources, Apr 2022]