Predicted to enable clathrin binding activity. Predicted to be involved in protein localization to somatodendritic compartment; protein targeting; and vesicle-mediated transport. Predicted to be located in cytosol and trans-Golgi network. Predicted to be extrinsic component of membrane. Predicted to be part of AP-4 adaptor complex. Human ortholog(s) of this gene implicated in hereditary spastic paraplegia 47. Orthologous to human AP4B1 (adaptor related protein complex 4 subunit beta 1). [provided by Alliance of Genome Resources, Apr 2022]