Predicted to enable protein kinase A catalytic subunit binding activity; protein kinase A regulatory subunit binding activity; and ubiquitin-protein transferase activity. Involved in long-term memory and regulation of protein kinase A signaling. Predicted to be located in cytoplasm; intermediate filament cytoskeleton; and plasma membrane. Orthologous to human PJA2 (praja ring finger ubiquitin ligase 2). [provided by Alliance of Genome Resources, Apr 2022]