Enables nuclear export signal receptor activity and tRNA binding activity. Acts upstream of or within protein export from nucleus. Predicted to be located in cytosol and nucleoplasm. Predicted to be part of RISC complex and RNA nuclear export complex. Predicted to be active in cytoplasm and nucleus. Is expressed in 2-cell stage embryo; 4-cell stage embryo; and head. Human ortholog(s) of this gene implicated in breast cancer; gastrointestinal system cancer (multiple); lung carcinoma (multiple); multiple myeloma; and primary ovarian insufficiency. Orthologous to human XPO5 (exportin 5). [provided by Alliance of Genome Resources, Apr 2022]