Contributes to ribonuclease P activity. Involved in intronic box C/D snoRNA processing and tRNA processing. Part of nucleolar ribonuclease P complex. Orthologous to human RPP21 (ribonuclease P/MRP subunit p21).
SGD Description
Subunit of nuclear RNase P; nuclear RNase P cleaves tRNA precursors to generate mature 5' ends and facilitates turnover of nuclear RNAs; not shared between RNase MRP and RNase P, in contrast to all other RNase P protein subunits; increases the activity and thermal stability of the complex, along with Pop2p; protein abundance increases in response to DNA replication stress