  The energy emitted by active galactic nuclei (AGN) may provide a
self-regulating process (AGN feedback) that shapes the evolution of galaxies.
This is believed to operate along two modes: on galactic scales by clearing the
interstellar medium via outflows, and on circumgalactic scales by preventing
the cooling and accretion of gas onto the host galaxy. Radio jets associated
with radiatively-inefficient AGN are known to contribute to the latter mode of
feedback. However, such jets could also play a role on circum-nuclear and
galactic scales, blurring the distinction between the two modes. We have
discovered a spatially-resolved, massive molecular outflow, carrying $\sim75\%$
of the gas in the central region of the host galaxy of a
radiatively-inefficient AGN. The outflow coincides with the radio jet 540 pc
offset from the core, unambiguously pointing to the jet as the driver of this
phenomenon. The modest luminosity of the radio source ($L\rm_{1.4 GHz}=2.1
\times 10\rm^{23}~\rm W~\rm Hz^{-1}$) confirms predictions of simulations that
jets of low-luminosity radio sources carry enough power to drive such outflows.
Including kpc-scale feedback from such sources -- comprising of the majority of
the radio AGN population -- in cosmological simulations may assist in resolving
some of their limitations.
