ST LMi is a Magnetic CV (Polar) with a P_orb of 113.89m.  This object is a single pole accretor, and although not an eclipsing object, the accreting pole becomes unobservable as the wd rotates.

 

CCD observations obtained with the Bradford Robotic Telescope, and V-band observations obtained with the Sonoita Research Observatory (through the AAVSO).