label: C-X3-C chemokine receptor activity
label_lc: c-x3-c chemokine receptor activity
description: "Combining with a C-X3-C chemokine and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity. A C-X3-C chemokine has three amino acids between the first two cysteines of the characteristic four-cysteine motif."