osmolarity-sensing monoatomic cation channel activity
Enables the transmembrane transfer of a monoatomic cation by a channel that opens when a change in the osmolarity occurs in the extracellular space of the cell in which the cation channel resides.
GO:0005034
osmosensor activity
is_a
GO:0005261
monoatomic cation channel activity
is_a
GO:0022836
gated channel activity
is_a
osmolarity-sensing cation channel activity
broad