  The ultra-luminous X-ray source CXO~J133815.6+043255 is a strong candidate
for a bona-fide intermediate mass black hole, residing in the outskirts of
NGC~5252. We present 22~GHz radio observations of this source obtained
serendipitously in an ongoing high-frequency imaging survey of radio-quiet
Active Galactic Nuclei (AGN), and use this new data point to construct the
broad-band radio spectral energy distribution (SED). We find that the SED
exhibits a spectral slope of $\alpha=-0.66\pm0.02$, consistent with a steep
spectrum from optically-thin synchrotron emission from an unresolved jet. We
also find that the $L_R / L_X$ ratio is approximately $10^{-3}$, inconsistent
with radio-quiet AGN and many ULXs but consistent with low-luminosity AGN
(LLAGN) and radio-loud quasars. Together, these observations support the
conclusion that CXO~J133815.6+043255 is an intermediate-mass black hole
producing a low-mass analog of radio jets seen in classical quasars.
