Predicted to enable U3 snoRNA binding activity. Predicted to be involved in endonucleolytic cleavage in 5'-ETS of 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). Predicted to be located in nucleoplasm. Predicted to be part of 90S preribosome. Predicted to be active in nucleolus. Is expressed in genitourinary system. Orthologous to human TBL3 (transducin beta like 3). [provided by Alliance of Genome Resources, Apr 2022]