Predicted to enable protein-membrane adaptor activity. Predicted to be involved in nuclear envelope organization. Predicted to be integral component of nuclear inner membrane. Predicted to be part of meiotic nuclear membrane microtubule tethering complex. Predicted to be active in nuclear envelope. Orthologous to human SUN3 (Sad1 and UNC84 domain containing 3). [provided by Alliance of Genome Resources, Apr 2022]