Component of the nuclear pore complex (NPC) that seems to be required for NPC assembly and maintenance (By similarity). Required for nuclear import of phosphorylated Mad via importin msk (PubMed:20547758). Has no role in classical nuclear localization signal (cNLS)-dependent nuclear import via importin-beta (PubMed:20547758). Facilitates the interaction between Nup93 and sec13 with msk (PubMed:20547758). Component of the nuclear pore complex (NPC). Component of the NPC Nup107-160 subcomplex. Belongs to the nucleoporin Nup85 family.