Predicted to enable several functions, including nuclear localization sequence binding activity; small GTPase binding activity; and zinc ion binding activity. Predicted to be a structural constituent of nuclear pore. Predicted to be involved in several processes, including negative regulation of RNA export from nucleus; nuclear pore complex assembly; and nucleocytoplasmic transport. Predicted to be located in annulate lamellae; cytosol; and nucleus. Predicted to be part of nuclear pore nuclear basket. Is expressed in embryo; lung; neural tube; and retina. Orthologous to human NUP153 (nucleoporin 153). [provided by Alliance of Genome Resources, Apr 2022]