Plays a role in the nuclear pore complex (NPC) assembly and/or maintenance (PubMed:9348540). May anchor NUP62 and other nucleoporins, but not NUP153 and TPR, to the NPC (PubMed:15229283). In association with TMEM209, may be involved in nuclear transport of various nuclear proteins in addition to MYC (PubMed:22719065). {ECO:0000269|PubMed:15229283, ECO:0000269|PubMed:22719065, ECO:0000269|PubMed:9348540}. This is the function of ENSG00000155561 (NUP205, nucleoporin 205).