The product of this gene is a core component of the
exon junction complex (EJC), a protein complex that is deposited on spliced
mRNAs at exon-exon junctions and functions in
nonsense-mediated mRNA decay (NMD). The encoded protein binds RNA and interacts with two other EJC core components. It is predominantly located in the
cytoplasm, but shuttles into the
nucleus where it localizes to
nuclear speckles. ==References==