Enables type I transforming growth factor beta receptor binding activity. Predicted to be involved in several processes, including cellular response to amyloid-beta; cellular response to epidermal growth factor stimulus; and negative regulation of transforming growth factor beta receptor signaling pathway. Predicted to act upstream of or within protein transport. Predicted to be located in early endosome membrane and tubular endosome. Predicted to be part of retromer complex. Predicted to be active in endosome. Orthologous to human SNX6 (sorting nexin 6). [provided by Alliance of Genome Resources, Apr 2022]