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We reconstruct Barrow Holographic Dark Energy (BHDE) within the framework ofSaez-Ballester Scalar Tensor Theory. As a specific background, we consider ahomogeneous and anisotropic Kantowski-Sachs Universe filled up with BHDE anddark matter. By assuming the Hubble radius as an IR cutoff, we investigate boththe cases of non-interacting and interacting dark energy scenarios. We analyzethe evolutionary behavior of various model parameters, such as skewnessparameter, Equation-of-State parameter, deceleration parameter, jerk parameterand squared sound speed. We also draw the trajectories of $\omega_D-\omega'_D$phase plane and examine statefinder diagnosis. Observational consistency isdiscussed by inferring the current value of Hubble's parameter through the bestfit curve of data points from Differential Age (DA) and Baryon AcousticOscillations (BAO) and commenting on cosmological perturbations and growth rateof matter fluctuations in BHDE. We show that our model satisfactorily retracesthe history of the Universe, thus providing a potential candidate explanationfor dark energy. Comparison with other reconstructions of BHDE is finallyanalyzed.

Saez-Ballester gravity in Kantowski-Sachs Universe: a new reconstruction paradigm for Barrow Holographic Dark Energy