This star is classified as a UGSU with a range 11.2 - 18V. Only one outburst has been seen back in April 2004. It has been observed fairly extensively since then. Of course, the outbursts could coincide with when it's close to the Sun, but the odds would suggest we woud see at leasts oem outbursts.
Could this star be another UGWZ? I did note Boris' comments made on 29 April 2013 about HST observations of QZ Lib. Whatever it is, it seems like a strange star.