Predicted to enable ubiquitin binding activity. Predicted to be involved in autophagosome assembly and positive regulation of transcription, DNA-templated. Predicted to act upstream of or within several processes, including macroautophagy; osteoblast differentiation; and ubiquitin-dependent protein catabolic process. Predicted to be located in cytosol. Predicted to be active in autophagosome and nucleus. Orthologous to human TP53INP2 (tumor protein p53 inducible nuclear protein 2). [provided by Alliance of Genome Resources, Apr 2022]