Predicted to be a structural constituent of nuclear pore. Acts upstream of or within with a positive effect on miRNA processing and protein localization to nucleus. Acts upstream of or within atrial cardiac muscle cell action potential; mRNA export from nucleus; and protein import into nucleus. Located in nuclear envelope. Human ortholog(s) of this gene implicated in familial atrial fibrillation. Orthologous to human NUP155 (nucleoporin 155).
