Involved in the cytoskeletal anchoring of DLG4 in excitatory synapses. Interacts with TUBB1. Interacts strongly with the PDZ3 domain of members of the DLG4 family. Associates with microtubules (By similarity). Interacts with DLG4. Colocalizes with DLG4 in asymmetric synapses. The disease is caused by variants affecting the gene represented in this entry. Belongs to the CRIPT family.