Can I fly IFR in VMC if my instrument rating is not current?
No, you cannot. 14 CFR 61.57 (c):


  (c) Instrument experience. Except as provided in paragraph (e) of this section, a person may act as pilot in command under IFR or weather conditions less than the minimums prescribed for VFR only if: [instrument currency requirements]


To accept an IFR clearance as PIC, even in VMC, you must be instrument current.