Predicted to enable protein kinase A catalytic subunit binding activity; protein kinase A regulatory subunit binding activity; and ubiquitin-protein transferase activity. Predicted to be involved in several processes, including long-term memory; regulation of macrophage activation; and regulation of signal transduction. Predicted to be located in cytoplasm; intermediate filament cytoskeleton; and plasma membrane. Is expressed in nervous system and testis. Orthologous to human PJA2 (praja ring finger ubiquitin ligase 2). [provided by Alliance of Genome Resources, Apr 2022]