Predicted to enable R-SMAD binding activity and co-SMAD binding activity. Predicted to be involved in negative regulation of BMP signaling pathway; protein ubiquitination; and regulation of transforming growth factor beta receptor signaling pathway. Located in nucleus. Is expressed in genitourinary system and submandibular gland primordium. Orthologous to human TRIM33 (tripartite motif containing 33). [provided by Alliance of Genome Resources, Apr 2022]