May act synergistically with the Wnt pathways to control T-cell fate specification, gonad development, and P12 cell fate specification. Required for the distribution of pop-1 and tlp-1 proteins. Cytoplasmic in neurons and nuclear in T-cells. Strongly expressed in the cytoplasm of the pharynx muscle cells and several head neurons, probably the IL1s or IL2s, throughout development. Also expressed in some other unidentified neurons in the tail region. Weakly expressed in the nuclei of the T-cells and the T-cell daughters. Not expressed in gonads and in P12 cell.