Component of ribonuclease P, a ribonucleoprotein complex that generates mature tRNA molecules by cleaving their 5'-ends (, ). Also a component of the MRP ribonuclease complex, which cleaves pre-rRNA sequences .
Subcellular locations: Nucleus, Nucleolus, Cytoplasm, Cytoplasmic granule
Under stress conditions colocalizes with SMN1 in punctuated cytoplasmic granules.