This gene is located within the mouse orthologous Prader-Willi Syndrome critical region and is imprinted and expressed from the paternal allele. This transcipt is thought to be bicistronic and can encode the small nuclear ribonucleoprotein polypeptide N (Snrpn) from a downstream open reading frame. The small protein represented by this gene is encoded by an evolutionarily-conserved upstream open reading frame and is localized to the nucleus. [provided by RefSeq, Mar 2017]