Predicted to enable several functions, including AP-1 adaptor complex binding activity; AP-2 adaptor complex binding activity; and RNA transmembrane transporter activity. Predicted to be involved in RNA catabolic process and RNA transport. Predicted to act upstream of or within several processes, including regulation of insulin secretion involved in cellular response to glucose stimulus; type B pancreatic cell development; and type B pancreatic cell proliferation. Predicted to be located in lysosomal membrane. Predicted to be active in lysosome and plasma membrane. Orthologous to human SIDT2 (SID1 transmembrane family member 2). [provided by Alliance of Genome Resources, Apr 2022]