obsolete intracellular cAMP-activated cation channel activity involved in regulation of presynaptic membrane potential (obsolete GO:0140232)
intracellular cAMP activated cation channel activity involved in regulation of presynaptic membrane potential
exact
OBSOLETE. Enables the transmembrane transfer of a cation by a channel that opens when intracellular cAMP has been bound by the channel complex or one of its constituent parts, to regulate the presynaptic membrane potential.