Predicted to enable mitogen-activated protein kinase kinase kinase binding activity. Predicted to be involved in bicellular tight junction assembly and negative regulation of epithelial cell migration. Predicted to act upstream of or within several processes, including negative regulation of JNK cascade; negative regulation of epithelial cell proliferation; and protein localization to cell junction. Predicted to be located in cytoplasmic vesicle. Predicted to be active in bicellular tight junction and cytoplasm. Orthologous to human MARVELD3 (MARVEL domain containing 3). [provided by Alliance of Genome Resources, Apr 2022]