RNA-binding protein involved in modulation of mRNA transcription by Polymerase II. Component of the tRNA-splicing ligase complex and is required for tRNA ligation. May be required for RNA transport.
Subcellular locations: Nucleus, Cytoplasm, Cytosol, Cytoplasm, Perinuclear region, Cytoplasm, Cytoskeleton, Microtubule organizing center, Centrosome
May localize at the centrosome during mitosis. Shuttles between the cytosol and the nucleus: enters into the nucleus in case of active transcription while it accumulates in cytosol when transcription level is low.