Enables rRNA binding activity. Involved in endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); and endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA). Located in nucleolus. Part of 90S preribosome; box C/D methylation guide snoRNP complex; and small-subunit processome.
SGD Description
Small nucleolar RNA (snoRNA) U3; part of small (ribosomal) subunit (SSU) processome; SNR17A also encodes snoRNA U3