Predicted to enable mRNA binding activity. Predicted to be involved in nuclear-transcribed mRNA catabolic process, nonsense-mediated decay and positive regulation of translation. Predicted to act upstream of or within response to unfolded protein. Predicted to be located in centriolar satellite; cytosol; and nucleoplasm. Predicted to be part of exon-exon junction complex. Predicted to be active in cytoplasm and nucleolus. Is expressed in several structures, including central nervous system. Human ortholog(s) of this gene implicated in non-syndromic X-linked intellectual disability 82 and syndromic X-linked intellectual disability 14. Orthologous to human UPF3B (UPF3B regulator of nonsense mediated mRNA decay). [provided by Alliance of Genome Resources, Apr 2022]