Predicted to enable several functions, including frizzled binding activity; protein C-terminus binding activity; and protein homodimerization activity. Predicted to be involved in cytoplasmic sequestering of CFTR protein; negative regulation of anion channel activity; and negative regulation of protein localization to cell surface. Predicted to act upstream of or within spermatid nucleus differentiation. Predicted to be located in cytoplasm; plasma membrane; and synapse. Predicted to be part of protein-containing complex. Predicted to be active in Golgi apparatus; membrane; and trans-Golgi network transport vesicle. Orthologous to human GOPC (golgi associated PDZ and coiled-coil motif containing). [provided by Alliance of Genome Resources, Apr 2022]