  We have searched quasi-periodic oscillations (QPOs) for BL Lac PKS J2134-0153
in the 15 GHz radio light curve announced by the Owens Valley Radio Observatory
40-m telescope during the period from 2008-01-05 to 2019-05-18, utilizing the
Lomb-Scargle periodogram (LSP) and the weighted wavelet Z-transform (WWZ)
techniques. This is the first time that to search for periodic radio signal in
BL Lac PKS J2134-0153 by these two methods. These two methods consistently
reveal a QPO of 4.69 $\pm$ 0.14 years (>5 $\sigma$ confidence level). We
discuss possible causes for this QPO, and we expected that the binary black
holes scenario, where the QPO is caused by the precession of the binary black
holes, is the most likely explanation. BL Lac PKS J2134-0153 thus could be a
good binary black hole candidate. In the binary black holes scenario, the
distance between the primary black hole and the secondary black hole is
1.83$\times$10$^{16}$ cm.
