Enables identical protein binding activity. Predicted to be involved in central nervous system development and signal transduction. Predicted to be located in acrosomal vesicle and early endosome membrane. Predicted to be part of early endosome. Predicted to be active in several cellular components,
including glutamatergic synapse; postsynaptic density, intracellular component; and postsynaptic endosome. [provided by Alliance of Genome Resources, Apr 2025]
SGIP1 functions as an endocytic protein that affects signaling by receptors in neuronal systems involved in energy homeostasis via its interaction with endophilins (see SH3GL3; MIM 603362) (Trevaskis et al., 2005 [PubMed 15919751] and Uezu et al., 2007 [PubMed 1