The product of this gene is part of a large complex
localized to the cytoplasm, nucleoli, and to discrete nuclear
bodies called Gemini bodies (gems). The complex functions in
spliceosomal snRNP assembly in the cytoplasm, and regenerates
spliceosomes required for pre-mRNA splicing in the nucleus. The
encoded protein directly interacts with a DEAD box protein and
several spliceosome core proteins. Alternatively spliced transcript
variants have been described, but their biological validity has not
been determined.
