Enables Hsp70 protein binding activity; Hsp90 protein binding activity; and PTB domain binding activity. Involved in negative regulation of cell population proliferation and negative regulation of signal transduction. Acts upstream of or within cell aging. Located in nuclear membrane. Part of nuclear pore. Is expressed in several structures, including brain; cardiovascular system; genitourinary system; gut; and integumental system. Human ortholog(s) of this gene implicated in primary biliary cholangitis and striatonigral degeneration. Orthologous to human NUP62 (nucleoporin 62). [provided by Alliance of Genome Resources, Apr 2022]