Predicted to be involved in double-strand break repair via homologous recombination and endosomal transport. Predicted to be located in nucleoplasm. Predicted to be part of AP-type membrane coat adaptor complex. Predicted to be active in cytosol; late endosome; and lysosome. Orthologous to human AP5S1 (adaptor related protein complex 5 subunit sigma 1). [provided by Alliance of Genome Resources, Apr 2022]