Component of the nuclear pore complex (NPC), a complex required for the trafficking across the nuclear envelope. Required for proper protein transport into the nucleus. Part of the nuclear pore complex (NPC). Lethal at the pupal stage with stronger phenotype with temperature increase (PubMed:32275884). Impairs sensory dendrite tiling on the larval body (PubMed:32275884). In escapers flies, leads to decreased negative geotaxis and seizures (PubMed:32275884). Belongs to the Nup188 family.