Predicted to enable ubiquitin ligase-substrate adaptor activity. Predicted to be involved in cellular protein metabolic process; positive regulation of protein polyubiquitination; and regulation of circadian rhythm. Predicted to act upstream of or within rhythmic process. Predicted to be located in cytosol. Predicted to be part of SCF ubiquitin ligase complex. Orthologous to human SPSB4 (splA/ryanodine receptor domain and SOCS box containing 4). [provided by Alliance of Genome Resources, Apr 2022]