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We studied the background dwarf nova of KIC 11412044 in the Kepler publicdata and identified it with GALEX J194419.33+491257.0. This object turned outto be a very active SU UMa-type dwarf nova having a mean supercycle of about150 d and frequent normal outbursts having intervals of 4-10 d. The objectshowed strong persistent signal of the orbital variation with a period of0.0528164(4) d (76.06 min) and superhumps with a typical period of 0.0548 dduring superoutbursts. Most of the superoutbursts were accompanied by aprecursor outburst. All these features are unusual for this very short orbitalperiod. We succeeded in detecting the evolving stage of superhumps (stage Asuperhumps) and obtained a mass ratio of 0.141(2), which is unusually high forthis orbital period. We suggest that the unusual outburst properties are aresult of this high mass ratio. We suspect that this object is a member of therecently recognized class of cataclysmic variables (CVs) with a stripped coreevolved secondary which are evolving toward AM CVn-type CVs. The presentdetermination of the mass ratio using stage A superhumps makes the first casein such systems.

GALEX J194419.33+491257.0: An Unusually Active SU UMa-Type Dwarf Nova with a Very Short Orbital Period in the Kepler Data