Predicted to enable protein kinase binding activity and protein serine/threonine kinase activator activity. Predicted to be involved in positive regulation of peptidyl-serine phosphorylation and positive regulation of protein serine/threonine kinase activity. Predicted to be part of protein-containing complex. Orthologous to human TCL1B (TCL1 family AKT coactivator B). [provided by Alliance of Genome Resources, Apr 2022]