Predicted to enable phosphatidylinositol phosphate binding activity. Predicted to be involved in negative regulation of autophagosome maturation; negative regulation of endocytosis; and negative regulation of phosphatidylinositol 3-kinase activity. Predicted to act upstream of or within autophagy; endocytosis; and immune system process. Predicted to be located in cytosol and nucleoplasm. Predicted to be active in early endosome and late endosome. Is expressed in central nervous system and retina. Used to study systemic lupus erythematosus. Human ortholog(s) of this gene implicated in autosomal recessive spinocerebellar ataxia 15. Orthologous to human RUBCN (rubicon autophagy regulator). [provided by Alliance of Genome Resources, Apr 2022]