Predicted to enable calcium ion binding activity. Predicted to be involved in heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules; hippo signaling; and nervous system development. Predicted to act upstream of or within several processes, including animal organ development; cell surface receptor signaling pathway; and condensed mesenchymal cell proliferation. Predicted to be located in apical part of cell. Human ortholog(s) of this gene implicated in Hennekam syndrome and Van Maldergem syndrome 2. Orthologous to human FAT4 (FAT atypical cadherin 4). [provided by Alliance of Genome Resources, Apr 2022]