Predicted to enable beta-catenin binding activity and cadherin binding activity. Predicted to be involved in several processes, including cell-cell junction assembly; dendritic spine morphogenesis; and regulation of canonical Wnt signaling pathway. Predicted to act upstream of or within learning; morphogenesis of a branching structure; and regulation of synaptic plasticity. Located in neuron projection and nucleus. Is active in postsynaptic density. Human ortholog(s) of this gene implicated in anxiety disorder; major depressive disorder; and schizophrenia. Orthologous to human CTNND2 (catenin delta 2). [provided by Alliance of Genome Resources, Apr 2022]