Putative sphingolipid-gated calcium channel. Homodimer. Localizes to the sarcotubular junctions where T tubules connect to the sarcoplasmic reticulum. According to PubMed:11829755, the data associated with PubMed:8700873 are to be considered with caution due to a frameshift in the cDNA used for the experiments. According to PubMed:12421694, orthologs exist in human (AC Q8IWQ8) and rat (AC Q8CGM6). However, the submitted sequences do not match human and rat reference genome assemblies, suggesting that they are artifactual and that SCAMPER most probably does not exist in human and rat.