Required for pre-mRNA splicing as component of the spliceosome. Contributes to pre-mRNA splicing after spliceosome formation and prior to the first transesterification reaction. As a component of the minor spliceosome, involved in the splicing of U12-type introns in pre-mRNAs. Plays also a role in innate antiviral response by acting as a pattern recognition receptor sensing splicing signals in viral RNA. Mechanistically, TRIM6 promotes the interaction between unanchored 'Lys-48'-polyubiquitin chains and DHX16, leading to DHX16 interaction with RIGI and ssRNA to amplify RIGI-dependent innate antiviral immune responses.
Subcellular locations: Nucleus, Nucleus, Nucleoplasm, Cytoplasm