Scaffold protein that connects plasma membrane proteins with members of the ezrin/moesin/radixin family and thereby helps to link them to the actin cytoskeleton and to regulate their surface expression (By similarity). Anchors the amino acid transporter protein aat-6 to the apical cell membrane of intestinal cells, particularly in older animals, in order to maintain amino acid homeostasis (PubMed:22916205). May play a role in promoting fertility (PubMed:30560135). Interacts (via PDZ 2 domain) with aat-6 (via PDZ-binding motif); the interaction sequesters aat-6 to the apical cell membrane of intestinal cells. Co-localizes with aat-6 at the apical cell membrane of intestinal cells. Expressed in the excretory canal and intestine (PubMed:22916205). Expressed on the apical cell membrane of intestinal cells (at protein level) (PubMed:22916205). Expressed in larval and adult stages. The PDZ 2 domain is required for the interaction with the amino acid transporter protein aat-6. Phosphorylated. Viable, with no gross anatomy or growth defects observed (PubMed:22916205). Localization of aat-6 at the intestinal apical cell membrane diminishes as animals age, and eventually aat-6 becomes diffusely dispersed in the cytoplasm (PubMed:22916205). RNAi-mediated knockdown in a pept-1 (lg601) mutant background results in a reduced number of progeny (PubMed:30560135).