Phosphorylates the splicing regulator TIA1, thereby promoting the inclusion of FAS exon 6, which leads to an mRNA encoding a pro-apoptotic form of the receptor.
Required for the biogenesis of some mitochondrial-encoded mRNAs, specifically stabilizes ND6 (NADH dehydrogenase complex subunit 6) mRNA, and regulates its levels.
Subcellular locations: Mitochondrion matrix
Colocalizes with mitochondrial RNA granules.
Expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas.