Question about the XA1110 GPS module reset pin

In our current design we are using a GPS module that has an enable pin that we use so we can share one uart line with two serial devices. The manufacturer has discontinued this module and we would soon not have to do any changes. When the XA1110 module is in reset, is the communication line in high impedance? In other words can we use the reset pin like an enable pin? Thanks in advance.